cathelineau



(No Model.) B'Sheets-Shfi 1.

R. OATHELINEAU.

SCREW PRESS.

No. 433,763. Patented Aug. 5, 1890.

VI 01 71 1 R (No Model.) 6 Sheets-Sheet 2.

R. GATHELINEAU.

SCREW mass.

No. 433,763. Patented Aug. 5, 1890.

THE Nonmsvgrens 0 mow-mun msmmrau, 0.1:.

Model) 6 Sheets-Sheet 3.

R. UATHELINEAU.

- SGREW PRESS.-

No. 433,763. Patented Aug. 5, 1890.

FIG?) (No'ModeL) 6 Sheets-Shet 5.

R. CATHELINEAU.

SCREW PRESS. No. 433,763. Patented Aug. 5. 1890.

@ ww amm QM; 'azwww (No Model.) v6 She.etsShet 6.

R. OATHELINEAU. SCREW PRESS.

No. 433,763. Patented Aug. 5, 1890.

FIG/M UNITED STATES PATENT ()FFICEQ RENE oA'rHELINEAU, OF RENNES,FRANCE.

SCREW-PRESS.

SPECIFICATION forming part of Letters Patent No. 433,763, dated August5, 1890. Application filed September 9, 1889. Serial No. 323,489. (Nomodel.) Patented in France June 13 1883 No. 156,018.

for and obtained patent of Fran ee, No.156,018,, dated June 13, 1883,with additional specifi:

cations hearing date October 20, 1885, and

August 10, 1889,) of which the following is a specification.

The invention relates to that class of presses in which the platen isoperated by a screw or screws; and it consists in certain novel detailsof construction and combinations and arrangements of parts, to behereinafter de-' scribed and pointed out particularly in the appendedclaims, the object being to provide a ratchet mechanism which may bereversed and the power exerted be increased or diminished according torequirements.

In the accompanying drawings, Figure 1 is a vertical section, Fig. 2 aplan, and Fig. 3 an elevation, of the upper part of a press constructedaccording to this invention. Figs. 4:, 5, and 6 are views of detachedportions of the same. Figs. 7 to 10 are views of alternative forms ofthe apparatus, and Fig. 11 is an elevation of a double press withmyimprovements applied thereto.

The apparatus shown in Figs. 1, 2, and 3 consists, essentially, of adisk A, into which is threaded-the screw A, and which is herein referredto as the nut-disk. The edge or periphery of this disk is notched orcorrugated, and is acted upon by two diametrically-opposite metalbrake-blocks B B, the inner or adjacent faces of which arecorrespondingly admit of them being rotated independentlyof the nut-diskA. The blocks D D are each formed with two inclined faces E E and eachof the brake-blocks B B is correspondingly formedwith two inclined facesG G, against which the faces E E are arranged to operate. Each of thebrake-blocks B B is located with its inner or corrugated side Fcontiguous to the corrugated edge of the disk A and its outer or doublyinclined side con= narrow part I being above the recess H,

this arrangement constituting one part of a bayonet-joint, hereinafterreferred to.

J is a longitudinal slot formed in the upper side of the block andcommunicating with the passage H for receiving, when the brakeblock isin working position, avertieal stud K, suitably secured in the plate 0,which stud projects into the passage H, but is clear of the sidesthereof, and against this stud the free end of the spring M bears.

L is a handle, preferably a casting, provided 'with a cylindricalportion L, (seen most clearly in Fig. 6,) which serves as an abutmentfor a spring M, which is held in position by encircling anothercylindrical portion of smaller diameter.

N is a pin or projection formed on the cylindrical portion L, forconnecting thehandle L to the brake-block by means of the other part ofthe bayonet joint hereinbefore referred to, with which it eo-operates,the pin N entering the opening H.

The plate 0 at one end is formed with a groove Q to receive ananti-friction roller R, carried on a stud secured to the flattened end Bof the lever S. This lever is mounted in a guide-block T, which isprovided with a pivot T, by which it is mounted, so that it canoscillate in the plate T The lever S can be moved longitudinally in theblock T, so as to adjust the power or speed which can be transmittedthrough its medium, the said lever being perforated with holes U and theblock T with a hole U, so that by the insertion of a pin U into any ofthe holes U and the hole U thelever can be secured in any of a number ofdifferent positions for exerting varying degrees of pressure.

The plate C is provided with a socket V for ICC enabling a rod to beinserted for the purpose of quickly and directly operating the presswhen required-for instance, when the platen is being raised af er apressing operation, or when it is being lowered onto the material to becompressed. \Vhen so operated, the lever S is moved out of the way, soas to enable the plate C and other directly-connected parts to berotated without striking against theroller R or pin U The operation ofthe before-described apparatus isasfollows: Assuming a compressingoperation to have been just completed and that the handles L arerespectively inserted from the'sides O and P, as shown in Fig. 2, eachof the brake-blocks, by the action of its spring M, being drawn towardthe side at which its handle is situated, the inclined face G of suchblock will be drawn against the inclined face E of the adjacent block Dor D and will force the corrugated face of the brake-block intoengagement with the corrugated edge of the nut-disk A. Now, if the leverS be moved in the direction indicated by the arrow 00, Fig. 2, thenut-disk A will be rotated so as to draw up the screw A and release thearticles compressed from the pressure of the movable platen. During thereturn-stroke of thelever S the studs K, moving away from the handles L,will leave the brake-blocks free to move over the corrugated edge of thedisk A, but so soon as the lever S is again moved in the direction 00the brakeblocks will engage with the corrugated edge of the disk andturn it round. It, now, it is desired to raise the movable platen to aconsiderable extent, the lever S may be swung out of the way and an armor the like inserted in the socket V, when the disk A may be directlyrotated, as before described. For the next pressing operation each ofthe handles L is removed from one end of its brakeblock and inserted atthe other end 0 or P. This adjustment will bring the faces G and E intouse, so that when the lever S is moved in the direction or, thebrake-blocks will slip over the edge of the disk A when moving in thedirection in which they previously engaged with it and in the reversemanner will grip the edge of the disk when moved in the direction inwhich they previously slipped over it, by this means forcing the screw Adown and pressing the movable platen onto the articles to be pressed. Bylongitudinally moving the lever S farther from the screw A and securingit in such altered position, the power which may be exerted upon thepressplaten will be increased in proportion to the extent of suchadjustment.

In the alternative form shown in Figs. 7 and 8, the general arrangementof the brake blocks B B, levers O 0, blocks D D, and theirdirectly-connected parts, is practically that already described. Thelever S of the former arrangement is, however, here replaced by a leverX which itself is pivoted on a fixed axis X, the means for adjusting thepower to be exerted on the movable platen consisting in this example ofa stud Y, carrying an anti-friction roller which works in a groove Y inthe plate 0, and which may be inserted into any one of a number of holesin the lever X This lever X is slotted at X so as to admit of its beingworked freely over the screw A. The operation of this last-describedarrangement, it is believed, will be understood sufficiently by thepreviously-given description of the manner of working the apparatusshown in Figs. 1 to 6.

In Figs. 9 and 10, a a are two links, each of which at one end isjointed to an arm Z) or b, pivoted one abovethe other on the boss of thenut-disk A, around which boss they are capable of being rotated. At itsother end each of the links a a is jointed to a crosshead (I, which iscapable of being moved on suitable guide-rods. To this cross-head (1reciprocating motion is imparted through the bowed or looped rod e,which is pivoted on a crank-pin f carried, by a disk g. The throw ofthis crank-pin f may be adjusted by turning the screw 71, as will bewell understood.

The disk g is keyed on a shaft 2', and at its under side is formed witha circular rack or bevel gear-teeth, which, by gearing with abevel-pinion h, secured on a shaft j, enables the rotary motiontransmitted to such shaftj' through the fast pulley to be furthertransmitted to the disk 9, and thus impart reciprocating motion to thecross-head d.

7c is the loose pulley. Now, when it is explained that each of the armsI) b carries a brake-block B or B similar to that hereinbeforedescribed, it will be understood that when the cross-head dis movingaway from the disk A the said disk will be moved by one of thebrake-blockssay that marked Band when the cross-head is moving towardthe disk A the said disk will be moved still farther in the samedirection by the other brake-block crank-pin f,, the extent of motionthrough which the disk A is moved at each half-stroke, and consequentlythe pressure to be exerted by the movable platen, can be adjusted. Ifdesired, the cross-head 01 may be adjustably mounted on the disk 9, inwhich case the rod 6 need not be formed bowed.

Fig. 11 illustrates a double press furnished with the before-describedimprovements, which are applicable to presses generally, including thoseemployed for the manufacture or treatment of wine, cider, oil, cot-ton,forage, and other such purposes.

I claim- 1. In a screw-press, the combination, with the pressing-screwfor the movable platen, the disk-nut on the screw, the supporting plateson both sides of the disk-nut, the block on the supporting-plates havingoppositelyinclined faces, and the operating-lever, of the brakeblock,having two oppositely-inclined faces, and the reversible spring andconnections, substantially as described, between the 1 spring andbrake-blck for moving said brake:

' guide-plates, the blocks D D on the guideplates, and theoperating-lever, of the brakeblock formed with the inclined facesco-operating with the blocks D D and having passage H, recess H, andhole H therein, a' handle fitting in the passage andhaving a projectionthereon fitting in the hole H a spring engaging the end of the handleand a pin or projection on the guide-plateengaging said spring,substantially asdescribed.

3. In a screw-press such as described, the

combination, with the screw for the'movable platen, the nut-disk, andguide-plateshaving pins or projections K, of blocks D D on theguide-plates, and the operating-lever, the brake-blocks, springs M,within the brake blocks, abutting against the pins, and connections,substantially as described, between the springs and brake-blocks, assetforth.

at. In a screw-press, thecombination, with the screw for the movableplaten, nut-disk and guide-plates provided with the blocks D D and pinsor projections K, of the inclinedfaced brake-blocks engaging thenut-disk and blocks D D, and having the passages therein, the handlesfitting in said passages and carrying springs engaging the pins orprojections on the guide-plates for holding the brakeblocks inengagement, and an operating-lever, substantially as described.

5. In a screw-press, the combination, with the screw, nut-disk,guide-plate provided with a block, and. projections, as described, andan operating-lever, of the brake-blockinterposed between the block onthe guideplate and the nut-disk, having a passage therein, a springmovably secured in said passage and engaging the projection on theguide-plate, and the corrugated or roughened face engaging the nut-diskand the inclined surfaces opposite said roughened face engaging theblock on the guide-plate, substantially as described.

6. In a screw-press, the combination, with the screw nut-disk having thehub or boss on both sides, the guide-plates journaled on said hub orboss, above and below the disk, the blocks D D, interposed between saidguide-plates outside of the nut-disk and having oppositely-inclinedfaces E E" thereon, and the operating-lever, of the brake-blocksinterposed between the blocks D D and nutdisk and having the inclinedfaces 0 engaging the faces E E, and aspring for automatically holdingthe said brake-blocks with either face in operative position,substantially as and for the purpose specified.

In testimony whereof I have hereto set my hand in the presence of tWosubscribing witnesses.

RENE CATHELINEAU.

Witnesses:

STRELLIGER, J. ROBELET.

